RECON: TNO occultation with 14JN80

Event between 14JN80 and star GDR2_255.371_-6.506 with event index number of 207408

Geocentric closest approach at 2018/07/23 07:25:59 UTC

J2000 position of star is 17:01:29.1 -06:30:20
Equinox of date position of star is 17:02:28.3 -06:31:53
Stellar brightness G=15.8, use SENSEUP=128
Star is 13 degrees from the moon. Moon is 82% illuminated.
TNO apparent brightness V=22.3

[RECON map]
TNO is 37.9 AU from the Sun and 37.2 AU from the Earth.
The TNO is moving 16.8 km/sec on the sky relative to the star, or, 2.2 arcsec/hr.
The 1-sigma error in the time of the event is 452 seconds.
The 1-sigma cross-track error in the shadow position is 5002 km.
The sky-plane scale is 26972.8 km/arcsec.

The TNO has an absolute magnitude Hv=6.4
Diameter=319.2 km assuming a 5% albedo -- 19.0 sec chord
Diameter=130.3 km assuming a 30% albedo -- 7.7 sec chord
Dynamical classification is SCATEXTD

Star training set for 14JN80, (2018/07/23 07:26UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:32.9 -26:28:18  0.9 21.34   9
13Zet Oph      16:38:11.0 -10:36:12  2.6  7.26   7
23 Oph         16:55:35.3 -06:10:59  5.3  1.75  12
PPM 200270     17:02:34.8 -06:45:44  7.9  0.23  12
PPM 200258     17:01:46.9 -06:35:43  8.8  0.19  12
14JN80         17:02:28.9 -06:31:53 15.8        13
Positions are for equinox of date

This table contains the target star visibility for the RECON network. The observing range has been set to a maximum of 2.0 sigma about the mid-time.
The median site spacing is 18.1 km RECON observability=1.0 and success probability=7.7%

Site Site mid-time
(UT) Sun alt
(deg) Sky Moon Star alt
(deg) Star az
(deg) Target Observing Time
(UT) X-track
(km)

Oroville 07:22:10 -20.4 Dark Up 26.0 221.4 Low 07:07:10 - 07:37:10 4129

Tonasket 07:22:09 -20.6 Dark Up 26.1 221.4 Low 07:07:09 - 07:37:09 4110

Okanogan 07:22:09 -20.9 Dark Up 26.5 221.4 Low 07:07:09 - 07:37:09 4088

Brewster 07:22:09 -21.2 Dark Up 26.7 221.3 Low 07:07:09 - 07:37:09 4072

Manson/Chelan 07:22:10 -21.3 Dark Up 27.1 221.0 Low 07:07:10 - 07:37:10 4063

Entiat 07:22:10 -21.5 Dark Up 27.3 221.0 Low 07:07:10 - 07:37:10 4048

Wenatchee 07:22:10 -21.8 Dark Up 27.5 221.0 Low 07:07:10 - 07:37:10 4030

Ellensburg 07:22:10 -22.1 Dark Up 27.9 220.9 Low 07:07:10 - 07:37:10 4003

Yakima 07:22:10 -22.5 Dark Up 28.2 221.0 Low 07:07:10 - 07:37:10 3971

Toppenish/White Swan 07:22:09 -22.8 Dark Up 28.3 221.3 Low 07:07:09 - 07:37:09 3950

Goldendale 07:22:09 -23.2 Dark Up 28.9 221.0 Low 07:07:09 - 07:37:09 3916

Pasco 07:22:04 -23.0 Dark Up 27.8 222.6 Low 07:07:04 - 07:37:04 3912

The Dalles 07:22:10 -23.4 Dark Up 29.3 220.7 Low 07:07:10 - 07:37:10 3907

George/Umatilla 07:22:04 -23.3 Dark Up 28.2 222.5 Low 07:07:04 - 07:37:04 3890

PNWRO 07:22:03 -23.3 Dark Up 27.9 222.9 Low 07:07:03 - 07:37:03 3887

Maupin 07:22:09 -23.8 Dark Up 29.5 221.0 Low 07:07:09 - 07:37:09 3871

Madras/Culver 07:22:09 -24.4 Dark Up 30.0 221.2 Low 07:07:09 - 07:37:09 3827

Sisters 07:22:09 -24.6 Dark Up 30.4 220.8 Up 07:07:09 - 07:37:09 3811

Redmond 07:22:08 -24.7 Dark Up 30.3 221.2 Up 07:07:08 - 07:37:08 3800

Bend 07:22:09 -24.9 Dark Up 30.5 221.2 Up 07:07:09 - 07:37:09 3786

Oregon Observatory 07:22:09 -25.0 Dark Up 30.7 221.1 Up 07:07:09 - 07:37:09 3775

La Pine/Gilchrist 07:22:09 -25.2 Dark Up 30.9 221.1 Up 07:07:09 - 07:37:09 3759

North Lake 07:22:06 -25.7 Dark Up 30.9 221.9 Up 07:07:06 - 07:37:06 3709

Chiloquin 07:22:09 -26.2 Dark Up 31.9 221.2 Up 07:07:09 - 07:37:09 3676

Paisley 07:22:05 -26.3 Dark Up 31.1 222.5 Up 07:07:05 - 07:37:05 3654

Klamath Falls 07:22:09 -26.6 Dark Up 32.1 221.5 Up 07:07:09 - 07:37:09 3645

Tulelake 07:22:07 -26.9 Dark Up 32.1 221.9 Up 07:07:07 - 07:37:07 3615

Lakeview 07:22:03 -26.9 Dark Up 31.4 222.9 Up 07:07:03 - 07:37:03 3607

Cedarville 07:22:01 -27.5 Dark Up 31.8 223.3 Up 07:07:01 - 07:37:01 3547

Fall River/Burney 07:22:05 -27.8 Dark Up 32.8 222.3 Up 07:07:05 - 07:37:05 3537

Susanville 07:22:01 -28.5 Dark Up 32.9 223.3 Up 07:07:01 - 07:37:01 3464

Greenville 07:22:03 -28.8 Dark Up 33.2 223.2 Up 07:07:03 - 07:37:03 3448

Gimple 07:22:03 -28.8 Dark Up 33.2 223.3 Up 07:07:03 - 07:37:03 3446

Quincy 07:22:03 -29.0 Dark Up 33.4 223.3 Up 07:07:03 - 07:37:03 3430

Portola 07:22:01 -29.2 Dark Up 33.2 223.8 Up 07:07:01 - 07:37:01 3407

Reno 07:21:58 -29.5 Dark Up 33.1 224.6 Up 07:06:58 - 07:36:58 3368

Carson City 07:21:58 -29.9 Dark Up 33.3 224.7 Up 07:06:58 - 07:36:58 3336

Gardnerville 07:21:57 -30.1 Dark Up 33.4 224.9 Up 07:06:57 - 07:36:57 3313

Yerington 07:21:55 -30.2 Dark Up 33.1 225.4 Up 07:06:55 - 07:36:55 3303

Hawthorne 07:21:53 -30.7 Dark Up 33.1 226.2 Up 07:06:53 - 07:36:53 3248

Lee Vining 07:21:54 -31.2 Dark Up 33.8 226.0 Up 07:06:54 - 07:36:54 3211

Tonopah 07:21:47 -31.3 Dark Up 32.6 227.7 Up 07:06:47 - 07:36:47 3170

Bishop 07:21:50 -31.9 Dark Up 33.8 227.0 Up 07:06:50 - 07:36:50 3138

Niwot 07:21:09 -29.7 Dark Up 24.1 237.4 Low 07:06:09 - 07:36:09 3066

Lone Pine 07:21:49 -32.7 Dark Up 34.1 227.6 Up 07:06:49 - 07:36:49 3061

Beatty 07:21:44 -32.5 Dark Up 33.2 228.7 Up 07:06:44 - 07:36:44 3054

CPSLO 07:21:58 -33.5 Dark Up 36.5 225.8 Up 07:06:58 - 07:36:58 3012

Indian Springs 07:21:39 -33.0 Dark Up 32.7 229.9 Up 07:06:39 - 07:36:39 2997

Henderson 07:21:36 -33.6 Dark Up 32.6 230.8 Up 07:06:36 - 07:36:36 2930

Searchlight/Boulder City 07:21:35 -34.2 Dark Up 33.0 231.1 Up 07:06:35 - 07:36:35 2875

Wildwood 07:21:49 -35.1 Dark Up 36.1 228.4 Up 07:06:49 - 07:36:49 2845

Patrick 07:21:32 -34.3 Dark Up 32.3 232.1 Up 07:06:32 - 07:36:32 2843

Laughlin/Bullhead City 07:21:34 -34.5 Dark Up 32.9 231.6 Up 07:06:34 - 07:36:34 2838

Kingman/Dolan Springs 07:21:32 -34.5 Dark Up 32.6 232.0 Up 07:06:32 - 07:36:32 2827

Mohave Valley 07:21:34 -34.8 Dark Up 33.1 231.7 Up 07:06:34 - 07:36:34 2813

DCO 07:21:29 -34.7 Dark Up 32.1 232.9 Up 07:06:29 - 07:36:29 2796

Lake Havasu City 07:21:32 -35.2 Dark Up 33.2 232.1 Up 07:06:32 - 07:36:32 2769

Idyllwild 07:21:40 -35.7 Dark Up 35.2 230.4 Up 07:06:40 - 07:36:40 2761

Parker 07:21:32 -35.5 Dark Up 33.4 232.3 Up 07:06:32 - 07:36:32 2735

Blythe 07:21:32 -36.0 Dark Up 33.9 232.4 Up 07:06:32 - 07:36:32 2694

Calipatria 07:21:36 -36.4 Dark Up 34.8 231.8 Up 07:06:36 - 07:36:36 2672

Yuma 07:21:32 -37.0 Dark Up 34.5 232.8 Up 07:06:32 - 07:36:32 2607

Azimuth is measured in degrees eastward from north. North is at an azimuth of 0, due East is at an azimuth of 90 degrees, due South is 180, and due West is 270.

Do not use the listing below for the RECON CPC 1100 telescopes. This is provided for other non-team facilities.

Star training set for 14JN80, (2018/07/23 07:26UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 21.34   9
13Zet Oph      16:37:09.6 -10:34:01  2.6  7.26   7
23 Oph         16:54:35.6 -06:09:15  5.3  1.75  12
PPM 200270     17:01:34.9 -06:44:11  7.9  0.23  12
PPM 200258     17:00:47.1 -06:34:09  8.8  0.19  12
14JN80         17:01:29.1 -06:30:20 15.8        12
Positions are for J2000

Event circumstances last updated at 2018/05/24 01:41:04 UT

Marc W. Buie, Southwest Research Institute

RECON

Site	Site mid-time (UT)	Sun alt (deg)	Sky	Moon	Star alt (deg)	Star az (deg)	Target	Observing Time (UT)	X-track (km)
Oroville	07:22:10	-20.4	Dark	Up	26.0	221.4	Low	07:07:10 - 07:37:10	4129
Tonasket	07:22:09	-20.6	Dark	Up	26.1	221.4	Low	07:07:09 - 07:37:09	4110
Okanogan	07:22:09	-20.9	Dark	Up	26.5	221.4	Low	07:07:09 - 07:37:09	4088
Brewster	07:22:09	-21.2	Dark	Up	26.7	221.3	Low	07:07:09 - 07:37:09	4072
Manson/Chelan	07:22:10	-21.3	Dark	Up	27.1	221.0	Low	07:07:10 - 07:37:10	4063
Entiat	07:22:10	-21.5	Dark	Up	27.3	221.0	Low	07:07:10 - 07:37:10	4048
Wenatchee	07:22:10	-21.8	Dark	Up	27.5	221.0	Low	07:07:10 - 07:37:10	4030
Ellensburg	07:22:10	-22.1	Dark	Up	27.9	220.9	Low	07:07:10 - 07:37:10	4003
Yakima	07:22:10	-22.5	Dark	Up	28.2	221.0	Low	07:07:10 - 07:37:10	3971
Toppenish/White Swan	07:22:09	-22.8	Dark	Up	28.3	221.3	Low	07:07:09 - 07:37:09	3950
Goldendale	07:22:09	-23.2	Dark	Up	28.9	221.0	Low	07:07:09 - 07:37:09	3916
Pasco	07:22:04	-23.0	Dark	Up	27.8	222.6	Low	07:07:04 - 07:37:04	3912
The Dalles	07:22:10	-23.4	Dark	Up	29.3	220.7	Low	07:07:10 - 07:37:10	3907
George/Umatilla	07:22:04	-23.3	Dark	Up	28.2	222.5	Low	07:07:04 - 07:37:04	3890
PNWRO	07:22:03	-23.3	Dark	Up	27.9	222.9	Low	07:07:03 - 07:37:03	3887
Maupin	07:22:09	-23.8	Dark	Up	29.5	221.0	Low	07:07:09 - 07:37:09	3871
Madras/Culver	07:22:09	-24.4	Dark	Up	30.0	221.2	Low	07:07:09 - 07:37:09	3827
Sisters	07:22:09	-24.6	Dark	Up	30.4	220.8	Up	07:07:09 - 07:37:09	3811
Redmond	07:22:08	-24.7	Dark	Up	30.3	221.2	Up	07:07:08 - 07:37:08	3800
Bend	07:22:09	-24.9	Dark	Up	30.5	221.2	Up	07:07:09 - 07:37:09	3786
Oregon Observatory	07:22:09	-25.0	Dark	Up	30.7	221.1	Up	07:07:09 - 07:37:09	3775
La Pine/Gilchrist	07:22:09	-25.2	Dark	Up	30.9	221.1	Up	07:07:09 - 07:37:09	3759
North Lake	07:22:06	-25.7	Dark	Up	30.9	221.9	Up	07:07:06 - 07:37:06	3709
Chiloquin	07:22:09	-26.2	Dark	Up	31.9	221.2	Up	07:07:09 - 07:37:09	3676
Paisley	07:22:05	-26.3	Dark	Up	31.1	222.5	Up	07:07:05 - 07:37:05	3654
Klamath Falls	07:22:09	-26.6	Dark	Up	32.1	221.5	Up	07:07:09 - 07:37:09	3645
Tulelake	07:22:07	-26.9	Dark	Up	32.1	221.9	Up	07:07:07 - 07:37:07	3615
Lakeview	07:22:03	-26.9	Dark	Up	31.4	222.9	Up	07:07:03 - 07:37:03	3607
Cedarville	07:22:01	-27.5	Dark	Up	31.8	223.3	Up	07:07:01 - 07:37:01	3547
Fall River/Burney	07:22:05	-27.8	Dark	Up	32.8	222.3	Up	07:07:05 - 07:37:05	3537
Susanville	07:22:01	-28.5	Dark	Up	32.9	223.3	Up	07:07:01 - 07:37:01	3464
Greenville	07:22:03	-28.8	Dark	Up	33.2	223.2	Up	07:07:03 - 07:37:03	3448
Gimple	07:22:03	-28.8	Dark	Up	33.2	223.3	Up	07:07:03 - 07:37:03	3446
Quincy	07:22:03	-29.0	Dark	Up	33.4	223.3	Up	07:07:03 - 07:37:03	3430
Portola	07:22:01	-29.2	Dark	Up	33.2	223.8	Up	07:07:01 - 07:37:01	3407
Reno	07:21:58	-29.5	Dark	Up	33.1	224.6	Up	07:06:58 - 07:36:58	3368
Carson City	07:21:58	-29.9	Dark	Up	33.3	224.7	Up	07:06:58 - 07:36:58	3336
Gardnerville	07:21:57	-30.1	Dark	Up	33.4	224.9	Up	07:06:57 - 07:36:57	3313
Yerington	07:21:55	-30.2	Dark	Up	33.1	225.4	Up	07:06:55 - 07:36:55	3303
Hawthorne	07:21:53	-30.7	Dark	Up	33.1	226.2	Up	07:06:53 - 07:36:53	3248
Lee Vining	07:21:54	-31.2	Dark	Up	33.8	226.0	Up	07:06:54 - 07:36:54	3211
Tonopah	07:21:47	-31.3	Dark	Up	32.6	227.7	Up	07:06:47 - 07:36:47	3170
Bishop	07:21:50	-31.9	Dark	Up	33.8	227.0	Up	07:06:50 - 07:36:50	3138
Niwot	07:21:09	-29.7	Dark	Up	24.1	237.4	Low	07:06:09 - 07:36:09	3066
Lone Pine	07:21:49	-32.7	Dark	Up	34.1	227.6	Up	07:06:49 - 07:36:49	3061
Beatty	07:21:44	-32.5	Dark	Up	33.2	228.7	Up	07:06:44 - 07:36:44	3054
CPSLO	07:21:58	-33.5	Dark	Up	36.5	225.8	Up	07:06:58 - 07:36:58	3012
Indian Springs	07:21:39	-33.0	Dark	Up	32.7	229.9	Up	07:06:39 - 07:36:39	2997
Henderson	07:21:36	-33.6	Dark	Up	32.6	230.8	Up	07:06:36 - 07:36:36	2930
Searchlight/Boulder City	07:21:35	-34.2	Dark	Up	33.0	231.1	Up	07:06:35 - 07:36:35	2875
Wildwood	07:21:49	-35.1	Dark	Up	36.1	228.4	Up	07:06:49 - 07:36:49	2845
Patrick	07:21:32	-34.3	Dark	Up	32.3	232.1	Up	07:06:32 - 07:36:32	2843
Laughlin/Bullhead City	07:21:34	-34.5	Dark	Up	32.9	231.6	Up	07:06:34 - 07:36:34	2838
Kingman/Dolan Springs	07:21:32	-34.5	Dark	Up	32.6	232.0	Up	07:06:32 - 07:36:32	2827
Mohave Valley	07:21:34	-34.8	Dark	Up	33.1	231.7	Up	07:06:34 - 07:36:34	2813
DCO	07:21:29	-34.7	Dark	Up	32.1	232.9	Up	07:06:29 - 07:36:29	2796
Lake Havasu City	07:21:32	-35.2	Dark	Up	33.2	232.1	Up	07:06:32 - 07:36:32	2769
Idyllwild	07:21:40	-35.7	Dark	Up	35.2	230.4	Up	07:06:40 - 07:36:40	2761
Parker	07:21:32	-35.5	Dark	Up	33.4	232.3	Up	07:06:32 - 07:36:32	2735
Blythe	07:21:32	-36.0	Dark	Up	33.9	232.4	Up	07:06:32 - 07:36:32	2694
Calipatria	07:21:36	-36.4	Dark	Up	34.8	231.8	Up	07:06:36 - 07:36:36	2672
Yuma	07:21:32	-37.0	Dark	Up	34.5	232.8	Up	07:06:32 - 07:36:32	2607